Abstract
The feasibility of applying methods developed by Safety Associates, Inc., to monitor oil degradation products, including malondialdehydes (AldeSafe™), FFA (FASafe™), and peroxides (PeroxySafe™), in fresh and heat-abused deep-fat frying oil was evaluated. Based on performance qualification studies, the AldeSafe method was the most suitable SafTest™ assay for monitoring the quality of frying oil because of its high accuracy, precision, linearity, and reproducibility, and low detection/quantitation limits. A strong correlation (r= 0.924) between the AldeSafe method and its counterpart, AOCS Official Method Cd 19-90, also supported the suitability of the SafTest method for monitoring oil quality. Moreover, the FASafe method had a moderately strong relationship with AOCS Official Method Ca 5a-40 (r = 0.761). Our studies suggest that this test can be applied for monitoring frying oil; however, certain method performance limitations must be considered for routine analysis purposes. In contrast, the PeroxySafe method probably should not be used to monitor heat-abused oil without further development because of high variability, low accuracy, and low correlation (r= 0.062) with the AOCS Official Method Cd 8-53 assay.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 15-20 |
| Number of pages | 6 |
| Journal | JAOCS, Journal of the American Oil Chemists' Society |
| Volume | 83 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 2006 |
Keywords
- Assay correlation
- Deep frying
- Free fatty acids
- Malondialdehyde
- Method qualification
- Oil degradation products
- Oil quality indicators
- Peroxides
ASJC Scopus subject areas
- General Chemical Engineering
- Organic Chemistry